linux-kernel - [PATCH] drm/panel: nt37801: select CONFIG_DRM_DISPLAY_DSC

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Message-Id: <20250523121127.2269693-1-arnd@kernel.org>
Date: Fri, 23 May 2025 14:11:22 +0200
From: Arnd Bergmann <arnd@...nel.org>
To: Neil Armstrong <neil.armstrong@...aro.org>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	David Airlie <airlied@...il.com>,
	Simona Vetter <simona@...ll.ch>,
	Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
	Linus Walleij <linus.walleij@...aro.org>
Cc: Arnd Bergmann <arnd@...db.de>,
	Jessica Zhang <quic_jesszhan@...cinc.com>,
	Dmitry Baryshkov <lumag@...nel.org>,
	Danila Tikhonov <danila@...xyga.com>,
	Jakob Hauser <jahau@...ketmail.com>,
	Jerome Brunet <jbrunet@...libre.com>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
	Sebastian Reichel <sebastian.reichel@...labora.com>,
	Hironori KIKUCHI <kikuchan98@...il.com>,
	dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] drm/panel: nt37801: select CONFIG_DRM_DISPLAY_DSC_HELPER

From: Arnd Bergmann <arnd@...db.de>

The newly added driver uses the DSC helper module, but does not
select its Kconfig symbol, so configurations are possible that
cause a link failure:

ERROR: modpost: "drm_dsc_pps_payload_pack" [drivers/gpu/drm/panel/panel-novatek-nt37801.ko] undefined!

Fixes: 4fca6849864d ("drm/panel: Add Novatek NT37801 panel driver")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/gpu/drm/panel/Kconfig | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
index 721581d425b4..cfebb08e8a62 100644
--- a/drivers/gpu/drm/panel/Kconfig
+++ b/drivers/gpu/drm/panel/Kconfig
@@ -522,6 +522,8 @@ config DRM_PANEL_NOVATEK_NT37801
 	depends on OF
 	depends on DRM_MIPI_DSI
 	depends on BACKLIGHT_CLASS_DEVICE
+	select DRM_DISPLAY_DSC_HELPER
+	select DRM_DISPLAY_HELPER
 	help
 	  Say Y here if you want to enable support for Novatek NT37801 (or
 	  NT37810) AMOLED DSI Video Mode LCD panel module with 1440x3200
-- 
2.39.5